20774560

素因数分解:

$2^5\times 5^1\times {\mathrm{129841}}^1$

素因数の和:129856

約数の個数: 24

約数和(自身を含む): 49080276

約数和(自身を除く): 28305716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 129841, 259682, 519364, 649205, 1038728, 1298410, 2077456, 2596820, 4154912, 5193640, 10387280, 20774560]

約数ペア:

[(1, 20774560), (2, 10387280), (4, 5193640), (5, 4154912), (8, 2596820), (10, 2077456), (16, 1298410), (20, 1038728), (32, 649205), (40, 519364), (80, 259682), (160, 129841)]